Ownership history in Bayesian Capital Management, LP · 18 quarters on record
This page tracks every 13F SEC filing in which Bayesian Capital Management, LP reported a position in BIOGEN INC (BIIB). Data includes quarterly share count, position size as % of portfolio, estimated market value, and end-of-quarter stock price — sourced directly from SEC EDGAR 13F filings.
| Quarter | Action | Shares | Change | Chg % | % of Fund | Mkt Value | Price (EOQ) |
|---|---|---|---|---|---|---|---|
| 2025 Q3 | ADDED | 5,100 | +3,160 | +162.9% | 0.15% | $714K | $140.08 |
| 2025 Q1 | REDUCED | 1,940 | -6,174 | -76.1% | 0.04% | $265K | $136.84 |
| 2024 Q1 | REDUCED | 8,114 | -3,486 | -30.1% | 0.17% | $1.7M | $215.63 |
| 2023 Q4 | ADDED | 11,600 | +100 | +0.9% | 0.32% | $3.0M | $258.77 |
| 2021 Q2 | ADDED | 11,500 | +7,300 | +173.8% | 1.04% | $4.0M | $346.27 |
| 2020 Q4 | REDUCED | 4,200 | -20,800 | -83.2% | 0.27% | $1.0M | $244.86 |
| 2020 Q2 | ADDED | 25,000 | +14,900 | +147.5% | 1.48% | $6.7M | $267.55 |
| 2020 Q1 | REDUCED | 10,100 | -7,700 | -43.3% | 0.69% | $3.2M | $316.38 |
| 2019 Q4 | ADDED | 17,800 | +13,500 | +314.0% | 0.90% | $5.3M | $296.73 |
| 2019 Q3 | REDUCED | 4,300 | -4,709 | -52.3% | 0.19% | $1.0M | $232.82 |
As of 2025 Q4 — sorted by position size